Craft CMS has potential RCE when PHP `register_argc_argv` config setting is enabled

CVE-2024-56145 → View on GitHub ↗ View on CVE.org ↗ View on NVD ↗

Description

Impact

You are affected if your php.ini configuration has register_argc_argv enabled.

Patches

Update to 3.9.14, 4.13.2, or 5.5.2.

Workarounds

If you can't upgrade yet, and register_argc_argv is enabled, you can disable it to mitigate the issue.

Basic information

Type
reviewed
Severity
critical
Advisory on GitHub
Open advisory ↗
Repository advisory
Open repository advisory ↗
Source code
Browse source ↗
Published (advisory)
2024-12-18 19:47:26 UTC
Updated
2025-10-22 19:26:46 UTC
GitHub reviewed
2024-12-18 19:47:26 UTC
NVD published
2024-12-18

EPSS Score

Score Percentile
93.93% 99.88%

CVSS Scores

Base score Version Severity Vector
9.8 3.1 —
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
Exploit maturity (E:H)
Exploits are easy to find or already weaponized—assume people are using them.
9.3 4.0 —
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network.
Attack complexity (AC:L)
Exploitation conditions are straightforward and stable.
Attack requirements (AT:N)
No additional preconditions are required beyond normal reachability.
Privileges required (PR:N)
No privileges are required.
User interaction (UI:N)
No user interaction is required.
Vulnerable system confidentiality impact (VC:H)
High confidentiality impact on the vulnerable system.
Vulnerable system integrity impact (VI:H)
High integrity impact on the vulnerable system.
Vulnerable system availability impact (VA:H)
High availability impact on the vulnerable system.
Subsequent system confidentiality impact (SC:N)
No confidentiality impact on subsequent systems.
Subsequent system integrity impact (SI:N)
No integrity impact on subsequent systems.
Subsequent system availability impact (SA:N)
No availability impact on subsequent systems.
Exploit maturity (threat) (E:A)
Attacked: exploitation has been reported, or toolkits exist that simplify exploitation.

Identifiers

Type Value
GHSA GHSA-2p6p-9rc9-62j9 ↗
CVE CVE-2024-56145 ↗

CWEs

CWE id Name
CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-94 Improper Control of Generation of Code ('Code Injection')

Credits

  • akues-an (finder)

Affected packages (3)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem Package Vulnerable range First patched Vulnerable functions
composer craftcms/cms >= 5.0.0-RC1, < 5.5.2 5.5.2 —
composer craftcms/cms >= 4.0.0-RC1, < 4.13.2 4.13.2 —
composer craftcms/cms >= 3.0.0, < 3.9.14 3.9.14 —

References

cvelogic Threat Intelligence